Genuine Toshiba

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My satellite is L305-S5919 and the power cord/adapter model # is PA-1750-04 and part # is PA 34368u-1ACA. I want a genuine Toshiba replacement but am having a hard time finding one on Amazon.com that matches my exact numbers. I found one on Amazon with this description, but it doesn't give any numbers and I'm afraid it won't fit. It looks exactly like my old power cord. Description:Toshiba Ac Adapter Laptop Charger Power Cord for Toshiba Satellite OEM/Genuine/Original Notebook Computer Battery Charger Ac Power Supply Cord Plug. How can I tell if this one will work?